Metal car-roof.



H. H. HART.

METAL CAR ROOF.

APPLICATION man FEB. 1. |913.

HA H. HART.

METAL CAR ROOF.

APPLCAT|0N FELED FEB. 913| I 1,189,252. Patented July fi, 1916.

3 SHEETS-SHEET 2.

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H. H. HART.

METAL CAR ROOF.

APPLICATION man fzs. 1. |913.

HERBERT H. HART, OF EVANSTON, ILLINOIS.

METAL CAR-ROOF.

Specification of Letters Patent.

Patented July 4, 1916.

Application filed February 7, 1913. Serial No. 746,716.

To all whom it may concern.'

Be it known that l, l'licnnEuT H. llAn'r, a citizen ot' the lvnited States, residing at E 'anstom in the county ot' Cook and State 0f Illinois, have invented certain new and useful Vlmprpvenients in Metal (lar-Roofs, ot' which the following is a specification.

My invention relates to ear-roofs and the object thereof is to provide a novel and etlicient structure of this kind from metal.

The construction ot' my new root is such that greater strength and at the same time sutlicient flexibility' for practical use is provided and a maximum otl headroom, and a minimum of weight are attorded within the car. y new t'orm ot' root may be employed in connection with either the wooden or steel car construction although herein shown as applied to a car with wooden body.

ln the drawings Figure 1 is a perspective ot a portion of a ear-roof embodyingr my invention, some of the roofing sheets being omitted and others broken away; Fig. 2 a section on the line 2 2 of Fig. 1 but on a larger scale: Fig. 3 a section on the line 3-3 of Fig. 1 but on the same scale as Fig. 2: Fig. l a plan view of a part ot' one of the purlins: Fig. 1' a cross-section on the line 5&3 of Fig. 4: Figs. f3 and 7 perspectives of one of the end caps for the carlines; Fig. 8 a detail view ol a modified t'orm of the cal'- line illustrating a somewhat different shape thereof; Fig. f) a perspective ot' a portion of a car-root illustrating a modilied construction and arrangement of the pnrlins: Fig. It) a plan view ol' one ot the purlins of Fig. 9; Fig. ll a section on the line Il -ll 0f Fig. il but on a larger scale: Fig. l2 a detail view of one of the purlins or a portion thereof illustrating a dilferent way of corrugaiing the same: Fig. 13 a view similar to Fig. 2 but illustratinr a modification of the structure thereof: ligs. 1l and 1.7 detail views of additional modifications of the connection between pnrlins. carlines and sheets. and Figs. 1V and 17 detail views ot a purlin showing the corrugation thereof provided with a filler.

For the sake ot' brevity and cleat-ness in description I will describe my invention in connection with the herein illustrated elnhodiments in which my car-root is shown applied to a :ar ot the wooden body type, although it will be understood that my in vention is equally applicable to all-steel cars or cars with metal bodies.

ot' the two opposite side plates 1, the end 060 plates L. ot which only one is shown, the siding 3. fascia board t and ridge pole The car roof in which my invention resides is composed wholly ot' metal, the same comprising a series ot' carlines (i, a series of purlins T and the roofing sheets 9, which parts arc associated and connected together in any one ot' the several ways herein illustrated and hereinafter described.

As herein shown and by preference. each carline is continuous trom side. to side ot' the car` that is the same is formed in a single piece extending from one side ot` the car and over the ridge pole to the other side ot' the car. llach carline is made ot' sheet metal ot the proper thickness and strength and in general is of channel shape. being composed ot' the two parallel portions or sides 0 and the connecting portion (3h forming the bottom of the channel. ln addition and by preference. the said portion (3" is (.'entrally longitudinally depressed in order to form the external groove G. clearly illustrated in Figs. l and L. Furthermore, each carlinc is provided with the laterally directed flanges ti" which are here shown as at right angles to the sides ti ot the channel section. ln the particular construction now heilig described these flanges torni a means ot attaclr ment ofthe carlines to the purlius and to the root' trame.

llach purlin. in the construction shown in Figs. l and L. is composed ol' a .strip of metal ot' desired thickness and length and here shown as connecting two or more oll the carlines. s a matter ot' tact. each purlin may if desired run the full-length otl the car-root', its opposite ends being secured in the end plates 2 ot the roof t'ranie. Flach purln. in its portion between two adjacent carl'ines is suitably corrugated or grooved as at Tl. such groove extending downwardly so that the purlin will present a substantially flat or straight surface to the rooting sheets to be applied as hereinafter described. 'lhis corrugating ot' the purlin is to provide the greatest strength with the least thickA :less and width of the strip of metal. the preferable extreme condition in this regard being illustrated in Fig. t wherein the metal ot' the purlin is shown as drawn inwardly from its opposite sides in order to provide illustrated in the modification of Fig. 8 wherein the carline 17 is shown of more rounded form as regards the bottom forma- -\t ion7of the channel and the groove therein.

*itccording'to the construction illustrated in Fig. 1 the purlins may be made more or less continuous that is each purlin may connect more than two of the carlines but it will be obvious that each purlin may connect merely two adjacent carlines in which event each purlin will consist of a metallic strip 18 connected at its ends with the flanges (3d of the carlines as clearly shown in Figs. 9 and 11. .Furthermore it is obvious that these purlins may be arranged i'n staggered order as illustrated in Fig. Q Moreover, the depression or cavity formed in the trussed purlins of the different forms shown may be provided with a suitable filler, such as wood 19 (see Figs. 1G and 1T) or the like thereby affording a complete and continuous support for the roofing sheets as to the entire top surface of the purlins.

1. In a car roof, the combination of a carline and a purlin connected therewith, the latter consisting of a metallic strip having its body portion corrugated downwardly to form a truss support and having a depressed portion forming a seat for the carline, said depressed portion beginning substantially at one end of said corrugation whereby the strain of the cai-line on the purlin is cem-v municated directly to the truss and sustained thereby, the top surface of the purlin being otherwise Hat, and ay roofing sheet supported by said flat surface and by the carline.

2. In a car roof, the combination of a scries of carlines and a series of purlins connected therewith, each purlin consisting of a metallic strip having its body portion between the carlines corrugated downwardly to form a truss support and having its portions adjacent the carlines depressed to Yform seats therefor, said depressed portions beginning substantially at one end of said corrugation whereby the strain ot' the carline on the purlin is communicated directly to the truss and sustained thereby, the top surface of such body portion of the purlin and the top surface of those portions of the carlines seated in the purlins being flat and flush with each other, and a roofing sheet supported by said flat surfaces of the carlines and purlins.

3. In a car roof,`the combination of a earline of channel form provided with a laterally extending fiange, .1 purlin connected therewith and consisting of a metallic strip having a portion offset to the -extent of the thickness of said flange and received by the latter and also having an upwardly directed portion interlocked with the channel of the carline, and a roofing sheet fitting upon the purlin and said flange which present a flush surface to the sheet.

4. In a car roof. the combination of a series'of carlines of channel section, metallic purlinsl havingr channel portions received by and interlocked with such channel ofthe carlines. and roofing sheets intcrlockcd with the carlines and supported by the purlins.

In a car roof", the combination of a car line of channel form provided with a latex ally extending flange, a purlin connected therewith and consisting of a metallic strip having a portion ofl'set to the extent of the thickness of said flange and received by the latter and also having a channel portion received by and inter-locked with such channel of the carline, and a roofing sheet intel'- locked with the carline and fitting upon the purlin and said fiange of the carlinc which present a flush surface to the. sheet.

G. In acar-roof. the combination of a series ot' carlines of channel section each con sisting of two parallel portions and a connecting portion, the latter being inwardly depressed to form a longitudinal groove, roofing sheets interlocked bodily with said carlines and having portions fitting into their said grooves, and purlins connected with the carlines.

7. In a car-roof, the combination of a. series of carlines ot' channel section, cach consisting of two parallel portions, a connecting portion and -two outwardly directed side flanges. said connecting portion being inwardly depressed to forni a longitudinal groove, purlins having upwardly directed portions received by the channel of the carlilies and meeting the said inwardly depressed portions thereof, and roofing sheets applied to the carlines and purlins.

8. In a car-roof, the combination of a Series of carlines' of channel section, each consisting of two parallel portions, and a connecting portion, the latter being inwardly depressed to form a longitudinal groove, caps for closing and sealing the ends of the carlines, each cap consisting of a plate with a projecting portion corresponding with the cai-line and extending thcreinto, said plate having a groove correspomling with and forming a continuation of the groove formed by thcinterlocking of the sheet into the groove of the carline, and roofing sheets interlocked with said carlines and fitting into their said grooves.

9. In a car-roof, the combination of a series of carlines of channel section, each consisting of two parallel portions and a connecting portion, the latter being inwardly ydepressed to form a longitudinal groove,

caps for closingand sealing the ends of the carlines, each capconsisting of a plate with a projecting portion corresponding with the carlines and extending thereinto, said plate havmg a hollow portion forming an air spnc'c in :conm-tion'with the inferior of: its

' portion of two :num-cnt mrfncs, und rodlng channel shaped cnizlnes, of p nrlns'hin'ng` channel shaped cnrlins, of pnilins having' chg'lnnels lnterhclnng with the chamn-lg 0f the cznfllnes, and n`-bolt pnsslng `through .said

-chgxnm-lsf of the curlnes und pnl-hns.

14. vln n Cnr-roof. the Combination. with Amrlincs can-hhnvng n longitudinalchannel with :l longtvndixml groovo n the bottom the lnu'lns. for 'Securing the cnrlnes :1nd, 

